Police have made an arrest in a string of burglaries dating to December 2012.
Former chiropractor Charles Painter Spear, 38, has been arrested, the Pima County Sheriff's Department announced over the weekend.
A second suspect is still on the loose and authorities are asking for help identifying him.
Police departments in Tucson, Oro Valley, Marana and the Pima County Sheriff's Department continue to search for a man who allegedly robbed many local businesses. At least 60 cases are attributed to the two suspects, dubbed "the monkey burglar" and his side-kick.
All of the incidents show similarities: a rock is thrown through the glass front door of a business window, usually in a professional plaza. When the suspect is inside the building, he jumps the counter or front desk and takes cash and other valuables from drawers and desks in the lobby area.
The Pima County Sheriff's Department has dealt with 24 cases alone, with damage costs estimated to range between $12,000 and $15,000.
Police note that Spear wears a facial mask to cover a disfigurement.
Police cannot tie the two suspects together at the same crime scene.
Anyone with information on the second suspect is urged to call 911 or 88-CRIME.
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